code: def __init__(self):
      self.inputs = []
      self.outputs = []
      # This is a stack of blocks that current running their build()
      # functions.
      self.blocks = []
  
      # Passing y class info from preprocessor to postprocessor.
      self.y_info
  
file_path: autokeras/autokeras/prototype/graph_state.py
imports: import threading
  from tensorflow import keras
label_desc: Use image node_id 1 to create a new State object  with example: obj = State()